I am interested to hear of your success with
Replay AV and
NetTransport: I haven't been able to use the computer much in recent weeks due to a Trojan attack which prevented booting and to my having to be away from home to care for my mother, but today I've tried them both with Real Player 10.5 installed (I have Windows 2000 so 11 is not an option) and still found them both unable to save any BBC Real audio streaming links, even if I open the metafile.
I'm going to install a new hard drive soon with a fresh install of the operating system, but for some strange reason it seems that BBC Radio Ripper has to be the one for me!